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Consulting services

Gerard de Wit, PhD, owner of Optical Diagnostics delivers consulting services in the following fields:

About Dr. Gerard C. de Wit

Gerard has an educational background in applied physics and clinical physics:

  • Postgraduate medical physics program,
    Dutch Medical Physicist Training Foundation,
    Visual system group, F.H. Hoeben      (2009-2012)
  • Ph.D. in applied physics,
    Delft University of Technology, the Netherlands
    Optics group of Prof. J.J.M. Braat      (1993-1997)
  • M.Sc. in applied physics,
    University of Twente, the Netherlands
    biophysics group of Prof. J. Greve      (1987-1993)

Gerard de WitGerard lives with his family in Beusichem, the Netherlands, but performs consulting services for institutes and companies all over the world.  Before founding Optical Diagnostics, he gained extensive international work experience at:

   - ABB, Baden, Switzerland

  - McGill University, Montreal, Canada

  - Microvision, Seattle, USA

  - Philips Research Center, Eindhoven, Netherlands

  - Schepens Eye Research Institute, Boston, USA

  - Netherlands Ophthalmic Research Institute, Amsterdam
Currently, he also works for:

  - Bartimeus, low vision institute, Zeist, Netherlands 


Technical software development

If you need some custom software tool, Optical Diagnostics can help you.  Gerard has been programming for over 25 years and currently uses Delphi to develop multi platform applications. He is especially interested in developing software tools to do calculations, graph data, aid with measurements, help designing, etc.  With his broad technical and scientific background, projects may also include mathematical or technical challenges that still needs to be solved.


Optical design

Do you need a custom designed lens/mirror system?  Let Optical Diagnostics help you.  Gerard has experience in designing, for example, scanning systems, eye pieces (HMDs), and free-form spectacle lenses.  Also he has experience in analyzing the straylight properties of optical systems.  He currently uses Zemax for optical design projects.


Contact Gerard de Wit to find out how he can be of help to your project.

Selected previous clients:



QI Press Control logo




 Midwest eye institute     


 VU U-specs


VU U-specs


D.O.B. foundation


Nederlands Oogheelkundig Gezelschap (NOG)




InterUniversitair Oogheelkundig Instituut (IOI)


MD Fonds


OLVS        3D visions logo


i-optics  Microvision (mvis)



  • software development (Delphi programming)
  • research and development
  • visual ergonomics
  • color vision / colour vision
  • optical design / stray light measurement
  • U-specs, Alvarez lenses, free-form lenses
  • metrology
  • calibration
  • vision systems